In the west wing of the assembly hall is one of the highlights of the Potala, the awe-inspiring Chapel of the Dalai Lamas' Tombs . The hall is dominated by the huge 12.6m-high chörten of the great fifth Dalai Lama, gilded with some 3700kg of gold. Flanking it are two smaller chörtens containing the 10th and 12th Dalai Lamas, who both died as children. Richly embossed, the chörtens represent the concentrated wealth of an entire nation.

One of the precious stones is a pearl said to have been discovered in an elephant's brains and thus, in a wonderful piece of understatement, 'considered a rarity'. Eight other chörtens represent the eight major events in the life of the Buddha.